Die spotting or like press



y 1964 J. F. CAMPBELL ETAL 3,140,513

DIE SPOTTING 0R LIKE PRESS Filed July 19, 1961 7 Sheets-Sheet 1INVENTORSI a w m" a e fittorneg July 14, 1964 J. F. CAMPBELL ETAL3,140,513

DIE SPOTTING 0R LIKE PRESS Filed July 19. 1961 w 7 Sheets-Sheet 2 IN VEN T0115 3e waArer Naqd July 14, 1964 J. 'F. CAMPBELL ETAL 3,140,513

DIE SPQTTING 0R LIKE PRESS Filed July 19, 1961 r 7 Sheets-Sheet 3 I IN VEN TOR. John RCm'npbQll, William P. Wnqhf 3r WaH'er Nagd Attorney y 1964J. F. CAMPBELL ETAL 13 DIE SPOTTING 0R LIKE PRESS Filed July 19, 1961 7Sheets-Sheet 4 INVENTOR.

John F. Compbell williamkwngm' k waMer Nage\ w QQw'M @QQAMJ/ AttovnryJuly 14, 1964 J. F. CAMPBELL ETAL 3,140,513

DIE SPOTTING 0R LIKE PRESS 7 Sheets-Sheet 5 Filed July 19. 1961 Sam-I F.Car- 2:2 ,William P. wvl'ghf WoMer N039] y 1964 J. F. CAMPBELL ETAL3,140,513

DIE SPOTTING OR LIKE PRESS Filed July 19, 1961 7 Sheets-Sheet 6 FIGS)223 ELL INVENTOR, John F- Ca-M bQH WHHa-MP. wnqhf' & Waher Na a July 14,1964 J. F. CAMPBELL ETAL 3,140,513

7 DIE! SPOTTING OR LIKE PRESS Filed July 19. 1961 HAND AUTO- 7Sheets-Sheet 7 EMERG STOP CYCLE START HYD. PUMP-STOP lxE-s CR RlGHT RlUN LATCH AR AR MAW VALVE 50L.

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3- LATCH F INVENTOR. hr 'Iohn CO W bell WiHimnP-Wrig Rug 4,-WQH'EYPPRAQJEI After v1 65 United States Patent DIE SPOTTING 0R LIKEPRESS John F. Campbell, Silver Lake, Ohio, William P. Wright, SilverLake, Ohio (2994 Silver-lake BlvdL, Cuyahoga Falls, Ohio), and WalterNagel, Silver Lake, Ohio (2923 Circle Drive, Cuyahoga Falls, Ohio); saidCamplliiell alssignor of one-sixth each to said Wright and said ageFiled July 19, 1961, Ser. No. 125,189 26 Claims. (Cl. 18-46) Thisinvention relates to presses, and in particular relates to a diespotting or like press.

In the past, die spotting or like operations generally have beenaccomplished by mounting top and bottom mating sections of the diebetween vertically relatively movable press platens. Presses availablefor this purpose, however, require removal of the mating die sectionsfrom the press after each die-registering movement of the platens, asfor mounting the die sections on a work bench for checking, grinding, orother corrective steps. Repeated removal and remounting of the diesections was tedious and time consuming, and accordingly uneconomicaland otherwise unsatisfactory. Because certain inspection and grindingsteps were required to be done at a point or points remote from themachine the effective space required for the entire operation wassubstantial.

One object of the present invention is to provide a die spotting or likepress having improved means for relatively moving the die sectionsbetween mating relationship and a condition in which the die sectionsare presented at remote points to have the mating portions thereofconveniently exposed for further work thereon, all without necessitatingremoval of the die sections from the press.

Another object of the invention is to provide a press of the characterdescribed which is automatic for requisite cycles of operation and/orselectively operable through various individual movements of the diesupporting means.

Anodier object of the invention is to provide a press of the characterdescribed which is readily adjustable to accommodate dies of varioussizes, and wherein the platens are self-aligning to eliminate the usualnecessity for dies thereon to have registering dowel pins.

Still another object of the invention is to provide a press of thecharacter described having improved means for applying heavy force tourge the die sections into registering relationship, and likewise forapplying reversely effective heavy force to urge the die sections apart,as when an article formed in the die tends to bind the die sectionstogether.

A further object of the invention is to provide a press of the characterdescribed including vertically relatively movable die-supportingplatens, and improved means for moving one of the platens to an invertedposition at a point remote from the other platen, to facilitate checkingor remedial work on die sections supported on the platens.

These and other objects of the invention will be manifest from thefollowing brief description and the accompanying drawings.

Of the accompanying drawings:

FIGURE 1 is a side elevation of a die-spotting press embodying thefeatures of the invention, and illustrating the same in condition foraffixing a two-part die thereon for a die-spotting or like operation.

FIGURE 2 is an end view of the press as viewed from the left of FIGURE1.

FIGURE 3 is an end elevation of the press as viewed from the right ofFIGURE 1, but with die-supporting platens in superposedpressure-applying position at the left end of the press, and with thedie sections secured to the platens.

FIGURE 4 is an enlarged fragmentary cross-section of 3,140,513 PatentedJuly 14, 1964 the press, taken substantially on the line 4-4 of FIG- URE3.

FIGURES 5, 6 and 7 are fragmentary cross-sections, corresponding to theupper portion of FIGURE 4, but illustrating movements of the top platenmember at the right-hand end of the press, and by which the top platenis moved to the inverted position H thereof, shown in chain-dotted linesin FIGURE 1.

FIGURE 8 is a fragmentary cross-sectional view,-taken substantially onthe line 88 of FIGURE 3, illustrating guide means for aligning thebottom platen with the top platen to register the die sections incomplemental relationship.

FIGURE 9 is a fragmentary cross-section taken substantially on the line9-9 of FIGURE 8.

FIGURE 10 is a schematic wiring diagram of the electrical system foroperation of the press.

General Description of the Press Referring generally to FIGURES 1 to 9,the numeral 15' designates an article-forming die, including mating topand bottom sections 16 and 17, adapted to be secured to relativelymovable, top and bottom platens 18 and 19 respectively. Bottom platen I?is vertically movably supported on one end of an elongated supportingframe 20, between laterally spacedside rails 21, 21 thereof. Top platen18 is releasably affixed on a platen support 22 vertically movablysupported on an upright carriage 23, which is longitudinally, shiftablysupported on the side rails 21. In other words, when the carriage 23 isvertically aligned with bottom platen 19, as shown at position B inFIGURE 1, the top platen 18 and its support 22 are vertically movable asa unit on the carriage, to fixed positions with respect to the bottomplaten, and the bottom platen is also vertically movable toward and fromthe fixed top platen, as by means of a hydraulically operated togglemechanism 25, to be described later. The arrangement is such that thetop platen 18, carried by its support 22 on carriage 23, is movablethrough a ser1es of positions, with respect to the bottom platen 19,IIlCllldlI'lg full and chain-dotted positions A to H, indicatedcorrespondingly in FIGURES 1 to 7.

The Carriage Referring particularly to FIGURES 1, 2 and 3, the carriage23 includes opposite upright side members 26, 26 and a top cross-head2'7, and is supported on frame 261 to move horizontally thereon, as bymeans of longitudinally spaced pairs of rollers 28, 28, on transverseextensions 29 of the side members, these rollers being adapted to rollon tracks 30 affixed on the upper edges of the frame side rails 21.Tilting action of the carriage on the frame is prevented by inturnedportions 31, on downward extensions 32 of the carriage side members,engaging under longitudinal guide strips 33, 33 on said side rails 21.

For moving the carriage on the fixed frame 20, power means 35 isprovided on the cross-head 27, the same including a reversible electricmotor 36 which, through a gear reducer 3'7 and a chain drive 38, rotatesa horizontal shaft 39 journalled on the cross-head. Gears 40 on shaft 39in turn mesh with gears 41 on the upper ends of vertical shafts 42journalled on the opposite side members 26, for rotating pinions 43keyed on the lower ends of said shafts, so that meshing engagement ofthe pinions with racks 44 extending horizontally on the side rails 21 ofthe frame 2i will move the carriage along the tracks 30. Limit switchesLS6 and LS3 are arranged at the left and right hand ends of the frame,as shown in FIG- URE 1, respectively to stop travel of the carriage inalignment with the lower platen 19, or in alignment with laterallyspaced trunnion bearings 45, which are affixed on the frame 20, forpurposes to be described later (see corresponding positions A and D inFIGURE 1). In these extreme positions of movement of the carriage,corresponding rollers 28 will be in engagement with stops 46, 46 at therespective ends of the frame rails or sides 21 The Top Platen MemberAgain referring particularly to FIGURES 1, 2 and 3, the top platen 18and its support 22 are vertically movably mounted on carriage 23 bymeans of laterally oppositely disposed pairs of vertical screw shafts49, 49, rotatably mounted between the side-member extensions 29 andbearings 50, 50 on the upper ends of the side members, the four screwshafts being received through threaded bushings 51 non-rotatably affixedin the corresponding corners of the platen support 22. Rotation of thescrew shafts 49 in unison in either of opposite directions is effectiveto raise and lower the platen member 19 on the carriage. These screwshafts also serve as guide means for said vertical movement of theplaten member in parallelism to the horizontal.

Power means 52 is provided on the carriage cross-head 27 for driving thefour screw shafts 49 in unison, the same including a reversible electricmotor 53 which through suitable bevel gear means 54, 54 drive a pair ofhorizontal shafts 55, suitably journalled on the cross-head. Bevel gearmeans 56, 56 at opposite ends of each shaft 55 drive the respectivevertical screw shafts 49. The arrangement is such that operation of themotor 53 may be electrically controlled, in a manner to be describedlater, to raise and lower the platen member 19 from and toward positionscorresponding to positions A to H indicated in FIGURES l to 7, whichwill be described in greater detail in connection with the operation ofthe machine.

The top platen member 18 may be releasably clamped on the platen support22 to be swung from and toward the same for purposes to be described.Accordingly, the platen 18 and its support 22 may have, at theright-hand sides thereof, cooperating pairs of lugs or bifurcations 57,57 and 58, 58, respectively, between which laterally spaced links 59, 59are pivotally connected, so that the lower platen may be swung, as forexample from the clamped position indicated at A in FIGURE 1, to thechain-dotted line position indicated at H in FIGURE 1. For locking theplaten in clamped relation to the platen support 22, the left side ofthe platen member may have cooperating pairs of lugs 61, 61 and 62, 62,respectively on platen 18 and its support 22. In the clamped position,aligned apertures 63 and 64 in the cooperating lugs 61 and 62,respectively, may have a cylindrical locking pin 65 receivedtherethrough, the pin being afiixed on the end of a plunger rod 66 of anelectrically controlled hydraulic cylinder 67 on the platen support.That is, one such hydraulic cylinder 67 is provided for each pair ofcooperating lugs 61 and 62 (see FIGURE 2).

On laterally opposite sides of the platen 18 may be a pair of trunnions68 adapted to be supportingly engageable in the bearings 45, when thecarriage has been moved to position D, and when the locked platen memberhas been moved downwardly on the carriage for that purpose. In the lastmentioned trunnion-engaged position, the locking mechanism 67a isoperable in a manner to be described later, to release the same so thatthe carriage 23 and the top platen support 22 thereon may be variouslymoved as described above to tilt the top platen from position E ofFIGURE 5, through positions F and G of FIGURES 6 and 7, to the angularlyinverted position H of the platen shown in chain-dotted lines in FIG-URE 1. Electrical control means for automatic and/or manual operationthrough these movements will be described in connection with the wiringdiagram of FIG- URE 10.

The Lower Platen For vertically moving the lower platen 19 inparallelism, the same may be mounted on the upper end of laterallyspaced movable support means 69, 69 which are vertically slidably guidedin fixed slide means 70 on the frame 21. For vertically moving theplaten in said slide means, the toggle mechanism 25 is connected betweena fixed lug 73 on the frame, or in the lower portion of the frame, andlug means '74 aflixed on the underside of the platen 19. The togglemechanism is operable from a collapsed position thereof shown in FIGURE1 to a fully extended or pressure-applying position shown in FIG- URE 3,as by means of a plunger shaft 74 of a hydraulic ram 75 connected to theintermediate pivot point 76 of the toggle mechanism. The cylinder 77 ofthe hydraulic ram is pivoted to the frame at 78 to be swingable withmovement of the toggle mechanism. Accordingly, the hydraulic ram 75 isoperable through an electrically controled valve VA (see FIGURE 10), andwhile the carriage is stopped at the left of this pass, to move thelower platen 19 from and toward a relative position shown in full linesin FIGURES l and 2, to the pressure-applying position shown in FIGURES 3and 4. During this upward movement of platen 19, guide cars 11, 11 onlaterally opposite sides thereof engaged within channel-shaped,vertically extending guides 12, 12 affixed on the carriage side members26, and thereby self-operatively to align platen 14 laterally andtransversely with respect to top platen 16. This structure eliminatesthe usual necessity for having dowel pins on the die sections to assureaccurate complemental registry of the same. Conversely, in the loweredposition of platen 19, the ears 11 thereon are disengaged from theguides 12 to permit transverse movement of the carriage 23.

Other means than the hydraulic ram 75 and toggle mechanism 25 may beutilized to apply requisite strong operating force to the lower platen19, in either direction. As an example, hydraulic rams or separateseries of hydraulic rams may be utilized for moving the platen 19 topressure-applying position and to retracting position, respectively.

Operation of the Press Operation of the press for spotting the sectionaldie or mold 15 will be understood by the following description inconnection with the wiring diagram of FIGURE 10 and the drawingsgenerally:

Setting up for Cycle of Operation of Press In setting up the machine orpress for a cycle of operation, the operator first closes the Startswitch to operate the pump (not shown) for the hydraulic ram 75, andsets selector switch H-A on Hand or manual operating position (seeFIGURE 10). Hydraulic-Down switch H-D is now closed to make sure thatthe toggle-operating ram 75 has been operated through valve VA, to movelower platen 19 to its low or retracted position (see FIGURE 1). Nowswitch LS-l is closed to set a series of associated electrical circuitsin condition for further selective press movement. The Platen-Up switchmay now be closed to move top platen member 18c, including support 22,upward on carriage 23 from pre-selected position B, until it is stoppedin position A on carriage 23 (FIGURE 1), by operation of a verticallyadjustable switch LS-2 for any predetermined limit of such upwardmovement as required (see full-line position of LS2 in FIGURE 1).Carriage-Right switch is next closed to move carriage 23, with the upperplaten member 18c thereon, from posiion A to the right, to centeredposition A of the carriage, shown in FIGURE 1, thereby to leave thebottom platen free and unobstructed.

Mounting Die on Press With the carriage retained in said A -position,the assembled two-part sectional die 15 is loaded on the lower platen19, as shown in full lines at the left of FIGURE 1, and the lowersection 17 of the die is clamped onto platen 19, as by means of clamps19a. Now the Carriage- Left switch is held to move the carriage 23 backto position the top platen above die 15, where it is automaticallystopped by engagement of a portion of the carriage with switch LS-6 onframe 20. The operator now closes the Hydraulic-Up switch, and therebythrough a valve VA to operate the ram 75 and toggle mechanism 72, tourge the bottom platen 19 to its upward limit of movement. ThePlaten-Down switch now may be held closed as necessary to move topplaten member 180 downwardly on the carriage until platen 18 rests onthe top die section 17, or until a predetermined dimension correspondingto the exact height of the die is indicated, by a pointer 11c affixed totop platen member 18c, on a scale 11a provided on one carriage sidemember 26. In this position, indicated at C in FIGURES 3 and 4, the topdie section 16 is affixed on the upper platen 18 by means of clamps 18a.Now hydraulic-down switch H-D is closed to lower the bottom platen,which closes switch LS1. The die-mounting cycle of operation is nowcomplete, and the press is in condition either for an automatic cycle ofoperation, or for manually controlled operation thereof.

Carriage-Right Cycle of Automatic Operation of Press To start aCarriage-Right cycle of automatic operation of the press, the operatornow sets selector switch H-A on automatic or Auto, thereby de-energizinglatching relays AR and R7, and energizing Carriage-Right relay CR-1, andalso energizing latching relay R1, by which latching mechanism 67a ofplaten member 18c remains locked to retain the upper platen 18 insuperposed clamped relation on top platen support 22. Top platen member18c, with male die section 16 thereon now travels up the carriage 23until it engages switch LS-Z, to open an LS-2 N.C. contact and stopupward travel of the top platen member in position A, shown in FIGURE 1,in which the male die section 16 clears the female die section 17.Simultaneously the NO. contact of switch LS-2 closes and energizes relayR2, which locks itself in by one set of its contacts. When LS-2 N.O.closes as described, the carriage 23 starts to travel to the right,through the circuit containing LS-3 and contact R1, until the carriageengages and opens right-hand limit switch LS-3 N.C., to stop theright-hand movement of the carriage in position D of FIGURE 1. At thesame time that LS-3 N.C. opens, LS-3 N.O. closes to de-energize latchingrelay R1, while relay R2 remains energized through closed LS-2 ND. TheNC. contacts of relay R1, being now open, the top platen member 180travels down until it engages switch LS-4 to open the same and stop saiddownward travel in position E of the top platen member in which thetrunnions 68 thereon will be cradled in the upwardly presented bearingslots 45 (see FIGURE 5). At the same time the LS4 N.O. contacts closeenergizing R4 through relay contacts R7 and R3. Upon the trunnions 68coming to rest in the bearing slots 45, platen 18 will engage switchesLSS-L and LSS-R, to close N.O. contacts of the same to theplaten-unclamping circuit for unclamping platen 18 through contact R4.The LSS-L NC. and LS5-R N.C. contacts are thereby opened to disconnectthe R3 Unlatch or unclamping circuit. When unclamping has beenaccomplished, a switch LS8 N.O. will be closed to energize timer T-l.After a pre-set time the timer T-l will energize the R7 latching relay,by which one contact R7 energizes unlatching relay R5 and one set of R7contacts deenergizes the R2 relay. Timer T-1 also energizes latch relayR3.

Now that relay R2 is de-energized and relay R5 is operated forunlatching the locking mechanism 67a, and relays R1 and R3 areenergized, switch LS4 causes top platen support 22 to travel up thecarriage from position E until the platen support engages switch LS-12,whereby LS-lZ N.C., opens and stops the upward travel of the platensupport at a predetermined height as shown in position F of FIGURE 6. Atthe same time LS-12 N.O. closes to energize relay R-6 through contactsR3-R5, to

cause the carriage to travel to the left, until it engages a switchLS-16 previously rendered effective through contact R3 to open switchLS-16, to stop left-hand travel of the carriage in position H of FIGURE1, in which the links 59 between top platen 18 and platen support 22will have caused the platen to tilt on the trunnions 68, through theG-position of FIGURE 7, to the I-I-position of FIG- URE 1, wherein thetop platen has been inverted to present the male portion 16 of die 15upwardly at a convenient working angle. In this position an operator mayprepare the die part 16 of a subsequent die-spotting operation in knownmanner, while die 17 is being likewise prepared at the other end of thepress.

Carriage-Left Cycle of Automatic Operation of Press After preparation ortreatment of the die sections 16 and 17 as described above (FIGURE 1),the operator closes return cycle switch RC, which energizes latch relayR5 through contact R7. Relay contacts R5 open the latch relay circuitand also drop out relay R6, to cause the carriage to travel to the rightuntil it comes in contact with switch LS3. The contacts of LS-3 N.C.thereby open to stop right-hand travel in position F (FIGURE 6), whileswitch LS-3 N.O. closes to de-energize the unlatching relay R1, andthrough contacts R1 and R5, thereby closes the platen-down circuit, andcauses the top platen support 22 to travel down the carriage until itengages switch LS4. This causes the LS4 N.C. contacts to open and stopthis down travel of platen support 22, in superposed relation to topplaten 18, which will then have been tilted back to its originalE-position on the trunnion bearings 45 (FIGURE 5 Simultaneously, the LS4N.O. contacts close, energizing R-10 relay through contact R5. ContactR-10 is thereby made effective, through ram 75 and toggle mechanism 72,to lock the top platen and its support 22 in clamped condition. Afterfully locked clamping has been accomplished, a plunger engages andcloses switch LS-7 ND. and energizes timer T-2 through contacts R5.After a pre-set time, timer T1 energizes latch relay R7, and throughcontacts R7 opens latch relay circuit R5, while contacts R7 alsoenergize unlatch relay R5 and stop operation of timer T-2. Contacts R5also de-energize relay R10, and open the Platen-Down circuit and theCarriage-Rig t circuit and also energize latching relay R1, which closesthe Platen-Up circuit to cause the top platen member 18 to travel up thecarriage. In this movement, switches LS5R and LSS-R N.C., close theenergized unlatching relay R3, and the platen member 18c continues totravel up until switch LS2 is engaged, thereby to open contact LS2 NC.and stop the upward travel. At the same time contact LS-Z N.O. closesand energizes relay R6 to cause carriage 23 to travel to the left untilit engages switch LS-6, which stops left-hand travel of the carriagewith the top die section 16 in position A (FIGURE 1), directly overbottom die section 17. This ends the automatic operation, and theoperator now sets selector switch H-A in the Hand position.

At this point, the two die sections 16 and 17 may be clamped together totest the accuracy of article-forming surfaces thereof by various knownmethods, such as by means of forming an article of suitable checkingmaterial in the die, and subsequently checking the formed article. Suchclamping of the die sections is accomplished as previously described,namely by closing the hydraulic-up switch H-U, and thereby through valveVA to operate ram 75 and toggle 72, tourge bottom platen 19 to thepositive upward limit of movement thereof. Now Platen-Down switch ismomentarily held closed as necessary to move the upper platen memberdown the carriage until the upper die section 16 is complementallyengaged with the lower die section 17 to form the article (not shown).This movement may also be checked by the position of pointer 11 withrespect to scale 11a (see FIGURE 2). Upon allowing the article to hardenthe ram and toggle are reversely operated, as described above, forciblyto separate the bottom die section from the top die section, after whichthe press may be set to repeat the aforesaid automatic operation andreturn the lower die section to the H position thereof shown at theright of FIGURE 1.

Accordingly, the top and bottom die sections 16 and 17 again will bepresented freely upwardly at the righthand and left-hand ends of thepress, respectively, whereby an operator or operators may convenientlywork on the respective die sections to check the same and the testarticle made therein, and may correct the dies as necessary. Theautomatic cycles of operation, through the various positions B to H andreturn, may be repeated as often as necessary to condition the die foruse in continuous production in another machine, without the necessityfor removing the die sections from the respective,

platens at any time during the testing or checking cycles of operationof the press. Any modifications, such as grinding operations, which maybe required in the two die sections likewise may be accomplishedsimultaneously while the top die section is in the H-position of FIGURE1.

The press can be stopped at any time during the right and left cycles ofautomatic operation, by means of the emergency stop switch ES. Bydepressing Cycle-Start switch C-S, the press will continue the automaticcycles from the points where they were stopped. If the operator should,for any reason, be required to reverse the direction of a particularoperation, from that which the corresponding position of the cycledictates, he may do so by setting the selector H-A switch for Hand ormanual control.

Manual or Hand Operation of Press Any of the various movements of thepress, accomplished as described for automatic operation, may beaccomplished individually by means of the respective manually operableswitches for Hydraulic-Up, Hydraulic- Down, Platen-Up, Platen-Down,Carriage-Right, Carriage-Left, Clamp and Unclamp. These switches, aswell as the switches for Emergency Stop (ES), Cycle Start (Cfis),Selector (H-A), and Return Cycle, may be located in a control box 12 onthe lower end of a downturned extension 13 of an arm 14 pivoted on thecross-head 27 of the carriage. The arrangement is such that the controlbox may be moved in a wide are around the carriage 23 for maximumconvenience to the operator during various phases of operation of thepress.

The clamping mechanism, however, cannot unlock, except under safeconditions. That is, the upper platen 18 and platen support 22 thereformust be fully supported in superposed relation by the trunnions 68resting in the bearing recesses 45, whereby the safety switches LSR andLSS-L will be held open, as previously described. There is also a safetyfeature in the hydraulic ram 75, in that it cannot be operated to movethe lower platen 19 either up or down unless the carriage 23 is in theextreme left-hand position of FIGURE 1 to close switch LS-fi.

Modifications of the invention may be resorted to without departing fromthe spirit thereof or the scope of the appended claims.

What is claimed is:

l. A press for registering die or like mating parts, comprisingrelatively movable platens adapted to have the mating parts securedthereto, means for relatively moving one said platen between a closedmating-part position and an open spaced-apart position with reference tothe other platen, means operable transversely to move said one platenrelatively from and toward an offset position with reference to saidother platen, and means operable upon said transverse movement to shiftsaid one platen toward and from inversely tilted condition in the offsetposition and means operable upon said transverse movement to shift saidone platen toward and from inversely tilted condition in the offsetposition.

2. A press, comprising relatively movable platen members, means foraxially relatively moving one of said members between open and closedposition with respect to an axis of the press, and means for retractingone said member radially of said axis to an inverted position thereofsubstantially spaced from the other member.

3. A press comprising relatively movable platen members,pressure-applying means for relatively moving said platen membersaxially toward and from each other, one said platen member including aplaten support and a tiltable platen having hinged connection thereto toswing from and toward a clamped position on the support, releasablemeans for locking said tiltable platen against swinging movement on saidsupport thereof, means for moving said one platen member away from theother in transverse direction angularly of the direction of said axialmovement, means operable during said transverse movement of said oneplaten member to release said releasable means, and guide means operableby transverse movement of said one platen member upon release of saidreleasable means to swing said tiltable platen thereon to apredetermined inverted angular position with respect to said platensupport.

4. A press as set forth in claim 3, said guide means includingrelatively fixed bearing means, and trunnions on said tiltable platenengageable in said bearing means pivotally to support the tiltableplaten, whereby said transverse movement of the platen support iseffective through said hinged connection to tilt the tiltable platen tosaid inverted position thereof on said bearing means.

5. A press as set forth in claim 4, wherein said hinged and pivotalconnections permit compound movement of the platen support, a pluralityof angularly disposed directions which determine the angle of saidtiltable platen on said bearing means in different angular directionswhich determine the angle of said tiltable platen on said bearing means.

6. A press as set forth in claim 5, wherein said platen members arevertically relatively moved by said pressureapplying means, said meansfor moving said one platen member including a horizontally movablecarriage on which said platen support is vertically movable and meansfor vertically moving said platen support on said carriage thereby toprovide said compound movement of the platen support thereby to providesaid compound movement of the platten support.

7. A press comprising an elongated supporting frame, a carriage, meansfor mounting said carriage for horizontal movement on said frame,carriage power means for moving said carriage horizontally on the frame,a bottom platen member, means for vertically movably mounting saidbottom platen member with respect to said frame, a top platen member,means for vertically movably mounting said top platen member on saidcarriage, top-platen power means for selectively moving said top platento different positions of vertical movement on said carriage, saidcarriage being movable by said carriage power means toward and from aposition of alignment with said bottom platen member in which said topplaten member is movable by said top platen power means to a fixedposition over said bottom platen member, and bottom platen power meansoperable to urge the bottom platen toward and from pressure-applyingrelationship to said top platen member in said fixed position of thesame, said top platen member including a platen support and a platen inswingable connection therewith to swing from and toward clamped positionon the support, and wherein is included releasable means for lockingsaid platen in said clamped position on said support, cooperativepivotal means on said frame at a point remote from said bottom platenand on said swin gable platen adapted to be interengageable by movementof the carriage and vertical movement of the top platen member thereonto provide pivotal support for said swingable platen, whereby uponrelease of said releasable locking means and predetermined further saidhorizontal movement of the carriage coordinated with vertical movementof the platen support thereon said swingable platen is swingable on theplaten support to a predetermined inverted angular position on saidpivotal means.

8. A press as set forth in claim 7, said pivotal means includingtrunnions on said swingable platen in spaced relation to the swingableconnection thereof with said platen support and bearing means inwardlyengageable by said trunnions by lowering said top platen member on saidcarriage means inwardly engageable by said trunnions by lowering saidtop platen member on said carriage.

9. A press as set forth in claim 8, said swingable connection includinglink means pivotally connected to said swingable platen and to saidplaten support therefor.

10. A press as set forth in claim 9, including means forself-centeringly guiding said trunnions into said bearing means.

11. A press as set forth in claim 7, said frame having laterally spacedtracks and said carriage having thereon spaced roller means engagingsaid tracks for rolling support of the carriage for said horizontalmovement thereof, and interengaging means on said frame and carriage foranchoring the carriage against upward movement with operation of saidbottom-platen power means.

12. A press as set forth in claim 7, including means for restrainingsaid carriage against vertical movement with respect to said frame withoperation of said bottomplaten power means.

13. A press as set forth in claim 7, said means for vertically movablymounting saidtop platen including a plurality of upright screw shaftsrotatably mounted on said carriage and threaded through portions of saidplaten support, said top platen power means being reversibly operable torotate said screw shafts to move the platen support vertically thereon.

14. A press as set forth in claim 7, said carriage power means includingrack means aflixed on said frame, and driven gear means on said carriagemeshing with said rack means, said carriage power means being reversibleto move the carriage horizontally in either direction through rotationof said gear means against said rack means.

15. A press as set forth in claim 7, said means for vertically movablymounting said top platen including a plurality of upright screw shaftsrotatably mounted on said carriage and threaded through portions of saidplaten support, said top platen power means being reversibly operable torotate said screw shafts to move the platen support vertically thereon,said carriage power means including rack means affixed on said frame,and driven gear means on said carriage meshing with said rack means,said carriage power means being reversible to move the carriagehorizontally in either direction through rotation of said gear meansagainst said rack means.

16. A press as set forth in claim 7, said bottom platen power meansincluding a toggle mechanism connected between a fixed anchor point andsaid bottom platen member and to hydraulic ram having plunger meansconnected to said toggle mechanism to extend and collapse the same.

17. A press as set forth in claim 3, said releasable means includingcooperating portions on said platen support and on the platen thereofprovided with openings in alignment in the clamped position of theplaten, and reciprocable means operable from and toward lockingengagement through said aligned openings.

18. A press as set forth in claim 3, said releasable means includingcooperating portions on said platen support and on the platen thereofprovided with aligned openings, at least one fluid pressure operatedplunger device having a plunger extension reciprocable from and towardlocking engagement through said aligned openings.

19. A press as set forth in claim 7, said carriage power means and topplaten power means being electrically op erable in an electrical circuitmeans progressively initiating successive said movements of saidcarriage and said top platen member to move said swingable platen towardand from said predetermined angle thereof.

20. A press, comprising an elongated supporting frame, a carriage, meansfor mounting said carriage for horizontal movement on said frame,carriage power means for moving said carriage horizontally on the frame,a bottom platen member, means for vertically movably mounting saidbottom platen member on said frame, a top platen member, means forvertically movably mounting said top platen member on said carriage,top-platen power means for selectively moving said top platen member todifferent positions of vertical movement on said carriage, said carriagebeing movable by said carriage power means toward and from a position ofalignment with said bottom platen member in which said top platen memberis movable by said top platen power means to a fixed position over saidbottom platen member, and bottom platen power means operable to urge thebottom platen toward and from pressure-applying relationship to said topplaten members in said fixed position of the same, said top platenmember including a platen support and a top platen swingably connectedthereon to swing from and toward clamped position on the support, andwherein is included releasable means for locking said platen againstswinging on said support, pivotal means on said frame at a point remotefrom said bottom platen and on said swingable top platen adapted to beinterengageable by movement of the carriage and the top platen memberthereon to provide pivotal support for said top platen, whereby uponrelease of said releasable means and predetermined further saidhorizontal movement of the carriage and vertical movement of the platensupport thereon said top platen is swingable on the platen support to apivot the top platen on said pivotal means to a predetermined angle,said carriage power means and top platen power means being electricallyoperable in an electrical circuit means progressively initiatingsuccessive said movements of said carriage and said top platen member tomove said swingable platen toward and from said predetermined anglethereof, said electrical circuit means being automatically operable froma position of predetermined cooperation of the top platen member toposition of the same in which the swingable top platen is at saidpredetermined angle thereof.

21. A press as set forth in claim 20, said electrical circuit meansbeing automatically reversely operable from the position for saidpredetermined angle of the swingable top platen back to said position ofpredetermined cooperation of the top platen member.

22. A press as set forth in claim 21, said electrical circuit meansincluding electrical means adjustable for selectively controlling givenportions of said movements of the top platen member and carriage.

23. A press as set forth in claim 22, including an arm pivoted on saidcarriage and having a downward extension adapted to be swung with thearm in an arc around the carriage, a manual control device provided onsaid arm extension having switch means connected in said electricalcircuit means for selectively controlling the op eration of the press.

24. A press as set forth in claim 20, including an arm pivoted on saidcarriage and having a downward extension adapted to be swung with thearm in an are around the carriage, a manual control device provided onsaid arm extension having switch means connected in said electricalcircuit means for selectively controlling the operation of the press.

25. A press as set forth in claim 7, guide means being provided on saidbottom platen member and on said carriage to be interengageable whensaid bottom platen member is relatively moved toward said top member insaid 11 12 position of alignment of the carriage, and thereby to channelportions on said carriage and ears on said botmaintain the bottom platenmember in centered aligntorn platen member vertically slidable in saidchannel ment with said top platen member. portions.

26. A press as set forth in claim 7, guide means being provided on saidbottom platen member and on said car- 5 References Cited in the file ofthis patent riage to be interengageable when said bottom platen mem-UNITED STATES PATENTS ber is relatively moved toward said top member ins i 2,500,791 Baldwin Mar. 14, 1950 position of alignment of thecarriage, and thereby to maill- 2,543,582 Lyijynen Feb. 27, 1951 tainthe bottom platen member in centered alignment With 2,821,747 RossiterFeb. 4, 1958 said top platen member, said guide means including 102,831,213 Klarmann etal Apr. 22, 1958

1. A PRESS FOR REGISTERING DIE OR LIKE MATING PARTS, COMPRISINGRELATIVELY MOVABLE PLATENS ADAPTED TO HAVE THE MATING PARTS SECUREDTHERETO, MEANS FOR RELATIVELY MOVING ONE SAID PLATEN BETWEEN A CLOSEDMATING-PART POSITION AND AN OPEN SPACED-APART POSITION WITH REFERENCE TOTHE OTHER PLATEN, MEANS OPERABLE TRANSVERSELY TO MOVE SAID ONE PLATENRELATIVELY FROM AND TOWARD AN OFFSET POSITION WITH REFERENCE TO SAIDOTHER PLATEN, AND MEANS OPERABLE UPON SAID TRANSVERSE MOVEMENT TO SHIFTSAID ONE PLATEN TOWARD AND FROM INVERSELY TILTED CONDITION IN THE OFFSETPOSITION AND MEANS OPERABLE UPON SAID TRANSVERSE MOVEMENT TO